* {
    margin: 0;
    padding: 0;
}

.body-img {
    width: 100%;
    /* 100%窗口高度 */
    height: 100vh;
}

.body-img img {
    width: 100%;
    height: 100%;
    z-index: 0.1;
}

.nav{
    width: 100%;
    line-height: 102px;
    background-color: #1B1A42; 
    position: relative;
    display: flex;
}

.logo{
    width: 186px;
    height: 110px;
    position: absolute;
    left: 41px;
    top: 20px;
    transform: rotate(-25deg);
}
.logo img{
    width: 100%;
    height: 100%;
}
.shortcut{
    position: absolute;
    right: 20px;
    list-style: none;
    right: 160px;
    }

.shortcut li {
    float: left;
    font-size: 17pt;
    padding-right: 54px;
}

.shortcut li a {
    color: #FFF;
    text-decoration: none;
}

.shortcut li i {
    font-size: 25px;
}

.center {
    position: absolute;
    top: 26%;
    left: 30%;
    /* z-index: 999; */
    width: 637px;
    height: 379px;
    background-color: #fff;
    border-radius: 18px 13px 13px 13px;
    opacity: 1;
    border: 1px solid #707070;
    display: flex;
    margin: 0;
    text-align: center;
}

.center .left-img {
    width: 256pt;
    height: 381px;
    /* margin-top: 23px; */
    position: relative;
    padding: 0;
}

.center .left-img img:nth-of-type(1) {
    width: 100%;
    height: 100%;
    position: relative;
}

.center .left-img img:nth-of-type(2) {
    width: 278px;
    position: absolute;
    z-index: 10;
    left: 0;
    top: 60%;
    transform: translateY(-50%);
    
}

.center .left-img-words {
    position: absolute;
    top: 0;
    /* left: 10%; */
    padding: 20px;
    color: #FFFFFF;
    font-size: larger;
}

.center .left-img-words p {
    padding: 5px;
}

.center .right-box {
    width: 331px;
    height: 333px;
    position: relative;
    opacity: 1;
    margin: 29px 25px 0 0;
}

.item {
    width: 340px;
    height: 60px;
    display: flex;
}

.item div {
    width: 170px;
    line-height: 60px;
    color: black;
    font-size: 18px;
    text-align: center;
    cursor: pointer;
    margin-right: 5px;
}

.item div:nth-of-type(2) {
    margin: 0;
    margin-left: 5px;
}

.content {
    width: 100%;
}

.content div {
    margin: 20px 30px;
    text-align: left;
    display: none;
}

.content div:nth-of-type(1) {
    display: block;
}

.content p {
    color: #4a4a4a;
    margin-top: 30px;
    margin-bottom: 10px;
    font-size: 15px;
}

.content input[type="text"],
.content input[type="password"] {
    width: 100%;
    height: 40px;
    border-radius: 3px;
    border: 0;
    border-bottom: 1px solid #adadad;
    box-sizing: border-box;
    outline: none;
}

.content input[type="submit"] {
    margin-top: 40px;
    width: 100%;
    height: 40px;
    border-radius: 20px 20px 20px 20px;
    color: white;
    border: 1px solid #adadad;
    background-color: #9088FA;
    cursor: pointer;
    letter-spacing: 4px;
    margin-bottom: 40px;
    font-size: larger;
}

.id-mes,
.pw-mes,
.login-mes,
.rgt-mes,
.fail-mes,
.wrong-pw,
.wrong-id {
    width: 200px;
    height: 60px;
    line-height: 60px;
    border-radius: 40px;
    font-size: 20px;
    color: #fff;
    opacity: 0;
    background-color: #9088FA;
    position: absolute;
    top: 350px;
    left: 60px;
}

.id-mes p,
.pw-mes p,
.login-mes p,
.rgt-mes p,
.fail-mes p {
    width: 120px;
    height: 80px;
    margin: 0 auto;
}

.wrong-pw p,
.wrong-id p {
    width: 155px;
    height: 30px;
    font-size: 17px;
    line-height: 30px;
    margin: 0 auto;
}

@keyframes attention {

    0%,
    100% {
        opacity: 0;
    }

    50% {
        opacity: 1;
        transform: translateY(-200px);

    }
}

.active {
    background-color: #f6f6f6;
    border-bottom: 3px #9088FA solid;
    border-radius: 5px;
}

.item div:hover {
    background-color: #f6f6f6;
}